TL16C550D_09 Datasheet, PDF (23/54 Pages) Texas Instruments – ASYNCHRONOUS COMMUNICATIONS ELEMENT WITH AUTOFLOW CONTROL

TL16C550D, TL16C550DI
www.ti.com .................................................................................................................................................. SLLS597E – APRIL 2004 – REVISED DECEMBER 2008
PARAMETER MEASUREMENT INFORMATION (continued)
RD1
(RD RBR)
SIN
(first byte)
Stop
50%
Active
(see Note B)
Sample Clock
t_d13
(see Note C)
t_d14
RXRDY
(see Note A)
50%
50%
A. The RXRDY signal is applicable only to the PT and PFB packages.
B. This is the reading of the last byte in the FIFO.
C. For a time-out interrupt, t_d13 = 9 RCLKs.
Figure 11. Receiver Ready (RXRDY) Waveforms, FCR0 = 0 or FCR0 = 1 and FCR3 = 0 (Mode 0)
RD1
(RD RBR)
SIN
(first byte that reaches
the trigger level)
50%
Active
(see Note B)
Sample Clock
t_d13
(ssee Note C)
t_d14
RXRDY
(see Note A)
50%
50%
A. The RXRDY signal is applicable only to the PT and PFB packages.
B. This is the reading of the last byte in the FIFO.
C. For a time-out interrupt, t_d13 = 9 RCLKs.
Figure 12. Receiver Ready (RXRDY) Waveforms, FCR0 = 1 and FCR3 = 1 (Mode 1)
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